Certificate of Analysis of the Holotype HLA 24/7 Configuration A1 & CE Product name Holotype HLA 24/7 Configuration A1 & CE Reference number H52 LOT number 00027 (N4/002-P5/006-E1/004-R2/006) Expiration data 2017-06-01 1 Quality control application overview Reagents from Holotype Kits (HLA locus specific primers and PCR enhancers) are combined with Qiagen Long Range PCR Kit reagents for amplification either of HLA-A, B, C, DRB1, DQB1, DQA1 and DPB1 for next-generation sequencing. Amplicons for all loci from each sample are combined in a roughly equimolar amount. Library preparation reagents (Fragmentation, End repair, and Ligation enzymes and buffers) are used to create libraries for sequencing from the pools of amplicons. Sample HLA typings are derived from the sequencing data. Indexed adaptor plates are tested for contamination and variability in a separate set of experiment. 2 Kit Components 2.1 Primer Component Box The primer component provides specific ready to use primer solutions for targeted Long Range PCR amplification of HLA genes A, B, C, DPB1, DQA1 and DQB1, and DRB1. Additionally, it also contains two types of PCR additives (Enhancer 1 and Enhancer 2). Primer mix REF # Rxns Vol/tube # Tubes Color code HLA-A P013 24 60 μl 1 Yellow HLA-B P023 24 60 μl 1 Red HLA-C P033 24 60 μl 1 Orange HLA-DRB1 P043 24 60 μl 1 Green HLA-DQB1 (Set 1) P053 24 60 μl 1 Blue HLA-DQB1 (Set 2) P063 24 60 μl 1 Black HLA-DQA1 P073 24 60 μl 1 Brown Page 1 / 7
HLA-DPB1 P083 24 60 μl 1 Purple Enhancer 1 E01 24 1100 μl 1 Clear Enhancer 2 E02 24 300 μl 1 Clear 2.2 Library Preparation Reagents Component Box The library preparation component box provides reagents for library preparation (fragmentation, blunt-end and adenylate the ends of the amplicons and ligate indexed adaptor sequences to them) from HLA amplicons. Reagent REF # Rxns Vol/tube # Tubes Color code Fragmentation Enzyme R12 24 70 μl 1 Yellow (A) Fragmentation Buffer (B) R22 24 70 μl 1 Red End Repair Enzyme (C) R32 24 41 μl 1 Green End Repair Buffer (D) R42 24 82 μl 1 Orange Ligation Enzyme (E) R52 24 81 μl 1 Blue Ligation Buffer (F) R62 24 900 μl 2 Black 2.3 96-well Indexed Adaptor Plate The 96 well indexed adaptor plate component contains ready to use indexed NGS adaptors (double stranded DNA oligonucleotides) in 5 μl solution for generating individual NGS libraries. The 96 well indexed adaptor plate contains sufficient kind of indexed adaptors for 24 individual NGS library generation and for downstream sample identification. Product type Associated Reagent REF Rxns Vol/well # Plates # Holotype HLA 24/7 Configuration A1 & CE (REF:H52) Adaptor Plate A1 (i1-24) N4 24 5 μl 1 3 Summary of Quality Control testing Evaluation/Assessment* /Fail Physical inspection Qualitative assessment of amplification by gel electrophoresis Page 2 / 7
Quantitative assessment of amplification by picogreen Assessment of mappability of sequences Assessment of amplification bias Performance specifications: accuracy, precision, sensitivity, specificity Assessment of fragmentation reagents Assessment of end repair and ligation reagents Assessment of adaptors for index sequence and location Assessment of adaptors for cross-contamination Assessment of adapter variability * * See individual sections for details. 3.1 Physical inspection All contents of the kit are inspected for proper components, volumes and labeling. The condition of all reagents were inspected after packaging and shipping. Results of physical inspection Expected volumes in all tubes and wells Proper labeling Proper shipping condition ( on dry ice) Reagents clear and not discolored Proper plate sealing /Fail 3.2 Amplification components quality control testing Amplification Amplification primers and enhancer reagents are tested on a selected panel of cell lines that have known typing information for the tested 7 HLA loci. Primers were used to amplify 12 samples in duplicate. All samples are assessed by gel electrophoresis for presence of amplicon at each loci and also through quantitative assessment of amplicon amount by picogreen. Results of amplification Quantitative assessment of amplification by picogreen : > 50 ng/µl for all amplicons (excluding FTA) Qualitative assessment of amplification by gel electrophoresis /Fail Page 3 / 7
Assessment of amplification success and specificity The primers used to amplify the HLA genes are intended to be specific to a given locus (or loci in the case of multiplexed primers). To assess the performance of the primers for specificity to the intended loci four measures are used: Mapped read count per locus: This measure estimates amplification success Best quality mapped read count per locus: This measure estimates amplification success Best quality mapped read count / Mapped read count per locus: This measure estimates amplification quality Reads mappable to the seven targeted loci / Processed read count for the sample: This measures estimates primer specificity Results of amplification success and specificity Amplification success: : At least 6000 mappable reads AND at least 5000 best mapping reads found for each loci in all samples. Fail: Less than 6000 reads OR less than 5000 best mapping reads found for at least one locus. Amplification quality: : At least 25% of mappable reads can be used for consensus generation. Fail: Less than 25% of mappable reads can be used for consensus generation. Primer specificity: : At least 60% of processed reads are mappable to the targeted loci. Fail: Less than 60% of processed reads are mappable to the targeted loci. /Fail Amplification balance assessment The differences between the representations of each allele in the samples is evaluated for balance. Results for amplification balance assessment Amplification balance: : Minor allele should be no lower than 20% (i.e. the major allele shown in graph should be lower than 0.8) Fail: At least one minor allele goes lower than 20%. /Fail Page 4 / 7
Genotyping performance assessment Given a set of samples, it is expected that the Holotype kit that is being quality control tested produces the same genotyping results obtained using independent genotyping methods (e.g. SSO, SBT or previous NGS runs). Therefore, a set of performance measures was calculated for each locus independently to measure the performance of genotyping: Sensitivity Specificity Precision/Positive Predictive Value (PPV) Negative Predictive Value (NPV) Accuracy/Type Correctly Classified (TCC) Repeatability Reproducibility Performance statistics were calculated on a three field level. Genotypes derived from both replicates in the pooled configuration were taken into account for the aforementioned calculations and were recorded separately. Results for genotyping performance assessment Sensitivity: : Sensitivity is 100% for all loci. Fail: Sensitivity is less than 100% for one or more loci. Specificity: : Specificity is 100% for all loci. Fail: Specificity is less than 100% for one or more loci. Precision/PPV: : Positive predictive value is 100% for all loci. Fail: Positive predictive value is less than 100% for one or more loci. NPV: : Negative predictive value is 100% for all loci. Fail: Negative predictive value is less than 100% for one or more loci. Accuracy/TTC: : Type correctly classified is 100% for all loci. Fail: Type correctly classified is less than 100% for one or more loci. Repeatability: : Results are identical between repeats within a QC run. Fail: There is at least one difference between repeats within a QC run. Reproducibility: /Fail Page 5 / 7
: Results of the current QC run and the QC run of the previous manufacturing lot are identical. Fail: Results of the current QC run and the QC run of the previous manufacturing lot are not identical. 3.3 Library Preparation reagent quality control testing Assessment of fragmentation The 12 sample pools in duplicate are inspected to assess that the fragmentation reagents were functioning properly, breaking the DNA into a wide range of sizes. Amplicons were pooled together prior to fragmentation and a small amount of each pool was used to assess the proper fragmentation through gel electrophoresis. Results of fragmentation All samples should produce a wide range of DNA fragments Similar size profile as the previous LOT /Fail Assessment of End Repair and Ligation Reagents To assess the end repair reagents and the ligation reagents during library preparation, qpcr is performed to ensure that there is library present. This is performed after size selection to ensure that adapter dimers are removed and the concentration of the library is based upon fragments with DNA from the amplicons generated. Results of fragmentation qpcr value should exceed 1 nm (1,000 pm) /Fail 3.4 Indexed Adapter Plate quality control testing Assessment of adapters for index sequence and location The test is performed on a specific sample panel developed for this purpose. 24 different libraries are prepared where no library possesses the same allele(s). Each sample has a unique HLA allele and the placement of the sample on the plate is known, the location of the indexed adapter can be confirmed with genotyping each of the samples. Index sequence and location: /Fail Page 6 / 7
: All allele calls match the expected reference genotyping. Fail: At least one allele call does not match the expected genotyping. Assessment of indexed adapters for cross-contamination The test is performed on a specific sample panel developed for this purpose. 24 different libraries are prepared where no library possesses the same allele(s). Index cross- contamination is assessed by looking for unexpected allele calls. Cross contamination would be evident through the detection of unexpected alleles and the contaminating adaptors identified. Results of indexed adapters cross-contamination A sufficient amount of reads is available: : For every tested index, at least 4000 read pairs were mappable to the expected allele. Fail: For at least one tested index, less than 4000 read pairs were mappable to the expected allele. A sufficient amount of reads is only available for the tested indices: : More than 1000 read pairs is only available for the tested indices. Fail: More than 1000 read pairs is available for at least on not tested index. Contamination with a single index is not observed: : No index was identified with more than 1% contamination from another single index. The criterion must be true for all different contamination % estimates. Fail: At least one index was found with more than 1% contamination from another index. /Fail Name Authorization for release Zoltán Simon - Omixon Function COO Signature Sign date 2016-07-20 Name Gergely Tölgyesi - Omixon Function RAQS Manager Signature Sign date 2016-07-20 Page 7 / 7